Trailer door



P. E. TAYLOR TRAILER DOOR Nov. 24, 1959 2 Sheets-Sheet 1 Filed May 28,1957 INVENTOR.

jazz? 39 BY 21m; 7" VOZ/WL- P. E'. TAYLOR 2,914,121

TRAILER DOOR 2 Sheets-Sheet 2 Nov. 24, '1959 Filed May 28; 1957'INVENTOR Pauli? Z0 flZ Q United States Patent TRAILER DOOR Paul E.Taylor, Benton Harbor, Mich.

Application May 28, 1957, Serial No. 662,270

6 Claims. (til. 160-37) The present invention relates to doors for housetrailers or mobile homes, and particularly to such doors of thecombination type that can serve as a screen door or vide an improveddoor which will fulfill these several functions.

To this end the window opening in the door, whch is adapted to be closedalternatively by glass panels or a screen panel, is of double trackconstruction comprising inner and outer track-ways for the slidingreception of l parallel spaced inner and outer panels. Similarly, thestorage well below the window opening, adapted for the storage of thescreen and glass panels, is likewise of double track construction. Thisdouble track COI'lStIL'C- tion is very advantageous, particularly in thewindow opening, because it enables the window opening to be closed by aninner glass panel and by an outer glass panel disposed side by side,thereby establishing a dead air space between the inner and outer glasspanels for minimizing heat loss through the window opening.

To perform certain operations of removing and substituting glass andscreen panels in the inner track-way and in the outer track-way, theinner track-way is provided with removable inner trim strips around theinner margins of the window opening, which inner trim strips are.

removable from the inner side of the door; and the outer track-way islikewise provided with removable outer trim strips around the outermargins of the window opening, which outer trim strips are alsoremovable from the outer side of the door. To the end of making theabove construction burglar-proof, I have devised an improved lockingarrangement cooperating with the panel or panels disposed in the windowopening, so that even if a burglar should remove the outer trim stripsfrom the outer side of the door, he still would not be ableto circumventthe panel or panels disposed in the window opening.

Another object of the invention is to provide such a door featuring asub-assembly of vertical side track rails and a horizontal overheadtrack rail which are set into the door as a unitary sub-assembly in theconstruction of the door. This insures alignment of the track rails withthe edges of the window opening, and also simplifies and reduces thecost of construction of the door.

Another object of the invention is to provide an im proved constructionof inner and outer door panels which effect a unique mounting of apliable weather strip around all four edges of the door, and which alsoeffect a unique mounting of a piano type of hinge along the hinge edgeof the door. 1

Patented Nov. 24, 1959 ice Another object of the invention is to providean improved mounting bracket for mounting the door lock mechanismbetween the inner and outer door panels at the locking edge of the door.

Other objects, features and advantages of the invention will be apparentfrom the following detail description of one preferred embodimentthereof. In the accompanying drawings illustrating such embodiment:

Figure l is a fragmentary front elevational view of my improved door.

Figure 2 is a fragmentary vertical sectional View, taken approximatelyat the plane of the line 22 of Figure 1.

Figure 3 is a horizontal sectional view through the hinge edge of thedoor, taken approximately on the plane of the line 33 of Figure 1.

Figure 4 is a fragmentary horizontal sectional view through the latchingedge of the door, taken approximately on the plane of the line 44 ofFigure 1.

Figure 5 is a fragmentary detail elevational View of the track railsub-frame, prior to its assembly on the door.

Figure 6 is a detail sectional view of one of the finger operatedlatches employed in the sliding glass and screen panels.

Figure 7 is a horizontal sectional view thereof, taken on the plane ofthe line 77 of Figure 6, and

Figure 8 is a vertical detail sectional view of the lock supportingbracket, and the lock mounted therein.

My improved door, designated 10 in its entirety, is usually sold to thehouse trailer manufacturer completely mounted in a door frame 11 fordirect installation in the door opening of the trailer. The door frame11 comprises a hinge stile bar 12, a latching stile bar 13, a top lintelbar 14, and a bottom threshold bar 15, all composed of steel barsections. As shown in Figure 3, the hinge stile bar 12 is ofapproximately Z-shaped section, comprising a web portion 12a, anoutwardly extending front mounting flange 12b, and an inwardly extendingrear closure flange 12c. The latching stile bar 13 comprises a web 13a,an outwardly extending front mounting flange 1317, an inwardly extendingrear flange 130, the front mounting flange 13b and the web 1311 beingjoined by two small right angle flanges 13d and 13e, defining a weatherstrip sealing area 16 therebetween. The upper lintel bar 14 and thelower threshold bar 1.5 have sub-, stantially thesame sectionalconfiguration as the latching stile bar 13, except that the inwardlyextending flange of the lower threshold bar 15 is rolled inwardly toform a beaded threshold strip. These four frame bars 12, 13, 14 and 15are welded or otherwise secured together at the corners of the frame 11;and the outwardly extending front mounting flanges 12b, 13b, 14b and 15bare all apertured as indicated at 17 for receiving mounting screws orbolts for mounting the door frame in the door opening of the mobilehome.

The main elements of the door 10 comprise an inner panel 20 and an outerpanel 21, which are both preferably blanked out of sheets of aluminum,stainless steel, painted steel or other suitable sheet metal. The innerpanel 20 is stamped out as a rectangular sheet, and then has its fourmarginal edges bent forwardly to define the spacing or edge flanges 22around all four edges of the inner panel. These spacing flanges 22 spacethe inner and outer panels 20 and 21 from each other, and by virtue ofthese edge flanges 22 the inner panel 20 affords most of the bodystrength of the door. At the latching edge and at the top and bottomedges of the door, these forwardly extending spacing flanges 22 of theinner panel are provided with outwardly bent sealing flanges 25. In theclosed position of'the door, these sealing flanges 25 overlie theweather strip sealing recesses 16 formed in the frame bars 13, 14 and15.

The outer panel 21 is blanking out as a flat rectangular sheet, andalong its hinging edge it has a hinge flange 26 bent rearwardly at rightangles to the main sheet. This rearwardly extending hinge flange 26overlies the forwardly extending hinge flange 22a of the inner panel 20,these two hinge flanges 22a and 26 having matching apertures therein toreceive hinge mounting screws, as will be later described. The otherthree edges of the outer panel 21, namely the latching edge, top edgeand bottom edge, are notched out at the corners and are then folded ordoubled back to embrace the outwardly bent sealing flanges 25 of theinner panel 20, these folded or doubled back lips being indicated at 28.The hinge flange 26 and these doubled back lip flanges 28 secure theouter panel 21 to the inner panel 20.

Before the lip flanges 28 are doubled back, lengths of rubber orneoprene weather strip 30 are mounted along the inner surfaces of thesealing flanges 26 of the inner panel 20. The weather strip 36 is formedwith a flat mounting or fastening lip 31 for mounting the weather strip,from which mounting lip 31 the weather strip doubles back to form twospaced compressible sealing lips 32 and 33. In the mounting of theweather strip, the mounting lip 31 may be cemented to the inner surfaceof the as sociated sealing flange 25, following which the retaining lips28 of the outer panel 21 are folded or rolled over the fastening lip 31of the weather strip, in which operation the sealing lips 32 and 33 aretemporarily held out of the path of folding the retaining flanges 28.

The door is hinged to the door frame 11 by a piano type hinge 35comprising a stationary hinge leaf 36 and a swinging hinge leaf 37 bothextending the full height of the door and hinged together by acontinuous hinge pin or rod 38. The stationary hinge leaf 36 is fixedlysecured to the web 12a of the hinge stile bar 12, preferably by spotwelding. The swinging hinge leaf 37 overlies the rearwardly extendinghinge flange 27 of the outer panel 21 along the entire hinge edge of thedoor. The swinging hinge leaf 37 has apertures therein matching with theapertures in the hinge flange 26 of the outer panel 21 and matching withthe apertures in the hinge flange 22a of the inner panel 20. Passingthrough these aligned apertures are countersunk screws 41 which havetheir inner ends threading into tapped holes in a reinforcing hinge bar42. This reinforcing hinge bar 42 is secured to the inner surface ofbinge flange 22a of the inner panel 26, such as by spot welding in thecase of a steel door, or riveting in the case of an aluminum door. Thisconstruction of hinge, and hinge flanges on the inner and outer panelsmakes the door mounting a standard assembly so that one door can replaceanother door by merely removing the screws 42 from the one door andreplacing them in the substituted door.

Embracing the free edge of te swinging hinge leaf 37 is another lengthof resilient weather strip 39. The mounting or fastening lip 31 of thislength of weather strip is confined between the swinging hinge leaf 37and the hinge flange 26 of the outer panel 21, with the sealing lips 32and 33 of the weather strip in position to be compressed against the web12a of hinge stile bar 12 when the door is closed.

The window opening through the door consists of matching rectangularopenings 45, 45 punched out of the upper portions of the inner and outerpanels 20, 21. Extending horizontally across the top of the windowopening 45, between the inner and outer panels 20 and 21 is a headertrack rail 47a; and extending down the opposite sides of the windowopening 45, also between the inner and outer panels, are vertical trackrails 4712 and 470. The horizontal track rail 47a is welded to the upperends of the vertical track rails 47b and 470 so that these three trackrails form a rail sub-assembly 47 which,

. in the assembly of the door, is inserted as a unit between the innerand outer panels 20 and 21 to line the top and two side edges of thewindow opening 45'. The ends of the horizontal track rail 47a extend outsubstantially into abutment against the inner surfaces of the spacingflanges 22 of inner panel 20; and the lower ends of the vertical trackrails 47b and 470 extend down substantially to the bottom of the door.If desired, a spacer bar or strip 49 may be secured to the inside of theinner panel 20 substantially at the bottom of the door, with its endssecured to the lower ends of the vertical track rails 47b and 47c tomaintain the proper spacing between the lower ends of these verticaltrack rails. The space 50 between the lower ends of these vertical trackrails constitutes a storage space for the glass panels and screen panelsnot in use. The sub-assembly 47 is made up outside of the door structureby welding the three track rails 47a, 47b and 470 together at the weldpoints 51, following which this sub-assembly 47 is inserted into thespace between the inner and outer panels 20 and 21 in the assembly ofthe door. This track rail sub-assembly 47 is substantiallyself-supporting when assembled in the door. Thus, the use of thissub-assembly 47 simplifies and reduces the cost of construction andassembly of the door, and also insures a fixed standard spacing betweenthe vertical track-ways for receiving the sliding glass panels andscreen panels.

The three track rails 47a, 47b and 47c are all of identical crosssection, comprising web portions 55a, 55b and 55c from which extend sidelegs 56a, 56b and 560. Projecting from the opposite side of the webportion are central ribs 57a-57c and two laterally spaced ribs 58a58c.These three ribs define aligned inner trackways 61a--61c and alignedouter track-ways 62a62c. These three track rails 47a, 47b and 470preferably consist of extruded aluminum formations.

Sliding in these inner and outer track-ways are glass containing panels65 and screen containing panels 66, which are'both of substantially thesame size as the window opening 45 and which are otherwise alike exceptthat one contains a glass pane and the other contains screen mesh.Mounted on the inner sides of the glass panels 65 and screen panel 66,adjacent to the upper edges of the panels, are horizontally slidinglocking plungers 68 which slide in horizontal track-ways 69 formed inthe upper rail of each panel. These locking plungers 68 are normallyprojected outwardly by compression springs 71 confined in the upperrail, these plungers being manually retracted by pressure exertedagainst finger pieces 72 projecting inwardly from each locking plunger.These plungers are preferably composed of nylon. The upper rails of theglass panels 65 may be provided with inwardly projecting lifting pullsor handles 73.

Punched at three or four vertically spaced points in the inner verticaltrack-ways 61b and 61c are locking perforations 74 adapted to receivethe locking plungers 68 of the panel which is then contained in theinner trackways 61b, 61c. Punched at the upper ends of the outervertical track-ways 62b and 62c is a single pair of oppositely disposedlocking perforations 75 for receiving the locking plungers 68 of thepanel which is then contained in the outer track-ways 62b, 620. Thus,the panel contained in the inner track-ways 61b, 610 can be set atdifferent vertical adjustments, whereas the panel contained in the outervertical track-ways 62b, 62c must be disposed either in its fully raisedclosed position or in its completely lowered open position, where it iscontained within the storage space 50. Extending around the marginaledges of the window opening 45 on the inner and outer sides of the doorare confining trim strips which serve to releasably confine the glasspanels 65 and screen panel 66 against removal through the window opening45, and which also serve to ornamentally trim the marginal edges of thewindow opening. These confining trim strips on the inner side of thedoor are designated 77, while those on the outer side of the door aredesignated 78. The trim strips are all of identical section, preferablyof extruded aluminum, and comprise outer fastening flanges 77a, 78a andright angle confiningflanges 77b,

781)," The fastening flanges 77a, 78a'are apertured for theqpassage offastening screws 79,which thread into tapped holes 81 opening into thesides'of the track rails 47a, 47b and 47c. Therightangle confiningflanges 77b,

78b. joverliethevertical inner and outer track-ways, com- 'mensuratewith the. window opening 45, so that these confining flanges confine theside edges of such panels 65 M66 as may'be disposed in the upper windowclosingpositionsin the inner and outer track-ways.

Referring now to the removability and interchangeability of ,the glass"panels 65 and screen panels 66 in the the points 58b and 580' are justabout on the horizontal plane-of the section line 3-3 of Figure 1).Alternatively, these vertical track rails may be specially formed so;that the inner'and outer side ribs 58b-and 580 are discontinued oromitted from the, top of the track rails'down -to the points 58band;58c'. Thus, by the milling away or omission of the upper portions ofthe side ribs 58b and 58c, the upper edges of the inner and outer panelsare free to' be tipped, inwardly or outwardly respectively inthe removalofthe panels. That is to say, in the upper through the inn'erfside' ofthe window opening 45 by incliningthe'upper edge of the panel inwardly}.Conversely,

whenever' it is des'ired to remove a panel 65 or 66 from the outer'track-way' it is only necessary to remove the .outer trim strips 78from the vertical track rails and to lift the panel through the outerside of the window opening 45 by inclining the upper edge of the-paneloutwardly. In regard to removing a panel fromthe outer trackway byremoving the outer trim strips 78, attention is directed totheaforementioned unique safety featureof .rriy improved construction;Any surreptitious attempt to remove either an inner panel or an outerpanel through the outer side of the window opening 45 by an intruderremoving the outer trim strips 78, is positively prevented.

"When a panel is in the upper window closing position in theouter'track-way, it is in a completely closed position because of theprovision of only a single pair of locking apertures 74 in the outertrack-way for receiving thelocking plungers 68. These locking plungers68 are on the innerside of the panel and hence are inaccessible to anintruder from the outer side of the door, when this panel is in closedposition in the outer track-way. Thus,

it is impossible to free the upper edge of the outer panel for diagonalwithdrawal of the panel outwardly through i the window opening, eventhough the outer trim strips 78 have been removed. It is also impossibleto free the lower edge of such outer panel for inclined outward removalthrough the window opening because the outer side ribs 58b, 58;- extendup sufficiently high along the outer edge "of the vertical track rails(i.e. to the points 58b and 58c) to overlie the lower side edges of theouter panel when this panel is in its raised window closing position.

If the outer panel in the outer track-way is in its lower window openingposition, contained within the storage well 50, and if the inner panelin the inner trackway is in its upper window closing position, it isstill impossible toga'in access through the window opening 45 .by thesurreptitious removal of the outer trim strips 78. In this situation,the presence of the central rigs 57b,

' ing bracket 90, is preferably filled with fiber glass, Styrofoam orany other preferred type of heat insulating ma- ;wterial so as tominimize the transmission of heat and cold through the door.

57;along the vertical track-ways positively prevents removal. of aninner panelin an outward direction through the window opening; and thislocking is further agument- -ed by the engagement of the lockingplungers 68 (located on the inner side of the inner panel) in the innerlocking apertures 74 in the inner track-way.

i By virtue, of the provision of inner and outer trackways in the windowopening of my improved door, it

possible in cold weather to close the window opening with 'an innerglass pane and with an outer glass pane,

thereby defining a dead air space between the inner and outer glasspanes for minimizing heat loss through the Window opening of the door.The double track-way in the window opening and in the storage wellpermit as many as four separate panes to be carried by the door, therebyaflording ample accommodation for two inner and outer glass panes forwinter weather and a screen pane for summer weather. The verticalinterchange of upper and lower panes in the same vertical track-way isquickly and easily efiected by removing the confining trim strips 77 or78 associated with that trackway. Spot welded to the spacer bar 49 atthe bottom of the. storage well 50 is a window rest bracket 83 againstwhich the lower edges of the glass panels and screen panels 66 come torest when these panels are lowered into the storage well 50.

, Secured to the inside surfaces of the inner and outer panels 20, 21,across the bottom edges of the window opening, are reinforcing bars 81,81 of angular cross section, these bars preferably being spot welded tothe inner surfaces of the panels 20, 21. Such bars 81 serve to stiffenand support the panel walls 20, 21 at the upper edgeof the storage space50. In addition, these bars 81 overlie and confine the upper edges ofthin sheets of heat 'U-shaped lock supporting bracket 98 is secured tothe inner side of spacing flange 22 at the latching edge of the innerpanel 20. This U-shaped bracket has outwardly projecting attaching cars91 at its open end, and sheet metal screws 92 pass through the spacingflange 22 and tap into holes in these attaching ears 91. The locking,bolt 93 extends rearwardly from the rear end of the lock housing 85,and the U-shaped bracket has a slotted aperture 94 at its inner endthrough which this rearwardly extending end of the locking bolt 93extends. The

outer end ofthe locking bolt cooperates with a keeper or catch plate 95secured to the latching stile bar 13 of the door frame 11. This U-shapedbracket, with its guided support of the rear end of the locking bolt 93,retains the lock assembly exactly at right angles to the latching edgeof the door and to the strike plate 94. This U-shaped bracket 90 is aswide as the intervening space between the inner and outer panels 20, 21,and thus prevents the panels from being depressed when the'lock isassembled. It resists the pressure of the lock application bolts, andholds the walls of the door snugly against the lock shoulders. getherwith the lockingmechanism 85, is applied to the inner panel 20 prior tothe introduction of the insulating .filler in the door and prior to theassembly of the door.

All of the remaining space between the inner and outer doorpanels 20 and21, other than that occupied by the storage well 50, and by the lockmechanism 85 and mount- While I have illustrated and described what Iregard This U-shaped bracket toto be the preferred embodiment of myinvention, nevertheless it will be understood that such is merely exernplary, and that numerous modifications and arrangements may be madetherein without departing from the'essence of the invention.

I claim:

1. In a door for house trailers, the combination of inner and outer doorpanels having a window opening therethrough, a storage well between saidinner and outer door panels below said window opening, a pair of innerand outer track-ways in both side edges of said window opening andextending down into said storage Well, glass and screen panels slidablein said track-ways, said pair of inner and outer track-ways in each sideedge of said window opening enabling inner and outer glass panels to bedisposed side by side in said Window opening, de fining a dead air spacetherebetween for minimizing heat loss through said window opening, apermanently fixed intermediate rib projecting rigidly inwardly betweensaid inner and outer track-ways in the window area for positivelypreventing the outer panel in the outer track-way from being moved in aninward direction relatively to the door and for positively preventingthe inner panel in the inner track-way from being moved in an outwarddirection relatively to the door; removable inner trim strips around theinner margins of said window opening, removable outer trim strips aroundthe outer margins of said window opening, said trim strips beingremovable from the inner and outer sides of the door respectively forpermitting the outer panel in the outer track-way to be removed from theouter side of the door, and for permitting the inner panel in the innertrack-way to be removed from the inner side of the door and lockingmeans for preventing surreptitious removal of said panels from saidtrack-ways in the event of surreptitious removal of said outer trimstrips from the outer side of the door.

2. In a combination door of the class described, the combination ofinner and outer door panels having a window opening therethrough, astorage well between said inner and outer door panels below said windowopening, track-ways in the side edges of said window opening andextending down into said storage well, glass and screen panels slidablein said track-ways, a permanently fixed intermediate rib projectingrigidly inwardly between said inner and outer track-ways in the windowarea for positively preventing the outer panel in the outer track-Wayfrom being moved in an inward direction relatively to the door and forpositively preventing the inner panel in the inner track-way from beingmoved in an outward direction relatively to the door removable innertrim strips around the inner margins of said Window opening, removableouter trim strips around the outer margins of said window opening, saidtrim strips being removable from the inner and outer sides of the doorrespectively for permitting the outer panel in the outer track-way to beremoved from the outer side of the door, and for permitting the innerpanel in the inner track-way to be removed from the inner side of thedoor, and locking means for preventing surreptitious removal of saidpanels from said track-way in the event of surreptitious removal of saidouter trim strips from the outer side of the door, said locking meanscomprising locking latches carried by the panels and engaging in lockingapertures in said track-ways.

3. In a combination door of the class described, the combination ofinner and outer door panels having a window opening therethrough, astorage well between said inner and outer door panels below said windowopening, a pair of inner and outer track-ways in the opposite side edgesof said window opening and extending down into said storage Well, glassand screen panels slidable in said track-ways, said pair of inner andouter track-ways in the opposite edges of said window opening enablinginner and outer glass panels to be disposed side by side insaid windowopening defining a dead air space therebetween for minimizing heat lossthrough said window opening, a permanently fixed intermediate ribprojecting rigidly inwardly between said inner'and outer track-ways inthe window area for positively preventing the outer panel in the outertrack-way from being moved in an inward direction relatively to the doorand for positively preventing the inner panel in the inner track-wayfrom being moved in an outward direction relatively to the doorremovable inner trim strips'around the inner margins 10 of said windowopening, removable outer trim strips around the outer margins of saidwindow opening, said trim strips being removable from the inner andouter sides of the door respectively for permitting the outer panel inthe outer track-way to be removed from the outer side of the door, andfor permitting the inner panel in the inner track-way to be removed fromthe inner side of the door, locking means for preventing surreptitiousremoval of said panels from said track-ways in the event ofsurreptitious removal of said outer trim strips from the outer side ofthe door, said locking means'comprising locking latches carried by thepanels in engaging and locking apertures in said inner and outertrack-ways, said inner door panel having spacing flanges extendingforwardly and sealing flanges extending outwardly from said spacingflanges along a plurality of the marginal edges of said inner panels,said outer door panel having lip flanges doubled back over the innersides of said sealing flanges, and pliable weather strips havingmounting lips fastened under said lip flanges.

4. In a combination door of the class described, the combination ofinner and outer door panels having a window opening therethrough, astorage well between said inner and outer door panels below said windowopening, a pair of inner and outer track-ways in'the 0pposite side edgesof said window opening and extending down into said storage well, glassand screen panels slidable in said track-ways, said pair of inner andouter track-ways in said window opening enabling inner and outer glasspanels to be disposed side by side in said 40 window opening defining adead air space therebetween for minimizing heat loss through said windowopening, removable inner trim strips around the inner margins of saidwindow opening, removable outer trim strips around the outer margins ofsaid window opening, said trim strips being removable from the inner andouter sides of the door respectively for permitting the outer 'panel inthe outer track-way to be removed from the outer side of the door, andfor permitting the inner panel in the inner track-way to be removed fromthe inner side of the door locking means for preventing surreptitiousremoval of said panels from said track-ways in the event ofsurreptitious removal of said outer trim strips from the outer side ofthe door, said locking means comprising a-permanently fixed intermediaterib projecting rigidly inwardly between said inner and outer track-waysin the window area, and locking latchescarried bythe'panels and engagingin locking apertures in the upper portions of said inner and outertrack-ways, said inner door panel having a forwardly extending hingeflange at the hinged edge of the door, said outer door panel'having arearwardly extending hinge flange at the hinged edge of the door, one ofsaid hinge flanges overlying the other, a piano hinge having a swinginghinge leaf abutting said hinge flanges, screws passing through saidhinge flanges and hinge leaf, and a hinge bar secured to the innermostof said hinge flanges and having tapped openings therein for receivingsaid screws.

5. Ina combination door of the class described, the combination of innerand outer door panels having a window opening therethrough, a storagewell between said inner and outer'door panels below said window opening,a pair of inner and outertrack-w'ays in the opposite side edges of saidwindow opening and extending down into said storage well, glass andscreen panels slidable in said trackway's, 's'ai'd pair of inner andouter track-ways in each side edge of said window opening enabling innerand outer glass panels to be disposed side by side in said windowopening defining a dead air space therebetween for minimizing heat lossthrough said window opening, a permanently fixed intermediate ribprojecting rigidly inwardly between said inner and outer track-waysin'the window area for positively preventing the outer panel in theouter track-way from being moved in an inward direction relatively tothe door and for positively preventing the inner panel in the innertrackway from being moved in an outward direction relatively to the doorremovable inner trim strips around the inner margins of said windowopening, removable outer trim strips around the outer margins of saidwindow opening, said trim strips being removable from the inner andouter sides of the door respectively for permitting the outer panel inthe outer track-way to be removed from the outer side of the door, andfor permitting the inner panel in the inner track-way to be removed fromthe inner side of the door, locking means for preventing surreptitiousremoval of said panels from said track-ways in the event ofsurreptitious removal of said outer trim strips from the outer side ofthe door, said locking means comprising locking latches carried by thepanels and engaging in locking apertures in said inner and outertrackways, lock mechanism on the locking edge of the door between saidinner and outer panels, and a horizontally extending U-shaped locksupporting bracket between said inner and outer panels having upwardlyand downwardly extending attaching ears at the open end of the U securedto the locking edge of the door and having a vertically extending slotin the closed end of the U through which projects the locking bolt ofthe lock mechanism for supporting said lock mechanism.

6. In a combination door of the class described, the combination ofinner and outer door panels having a window opening therethrough, astorage wall between said inner and outer door panels below said windowwindow opening, removable inner trim strips around the inner margins ofsaid window opening, removable outer trim strips around the outermargins of said window opening, said trim strips being removable fromthe inner and outer sides of the door respectively for permitting theouter panel in the outer track-way to be removed from the outer side ofthe door and for permitting the inner panel in the inner track-way to beremoved from the inner side of the door, locking means for preventingsurreptitious opening of the door in the event of surreptitious removalof said outer trim strips from the outer side of the door, said lockingmeans comprising a permanently fixed intermediate rib projecting rigidlyinwardly between said inner and outer track-ways in the window area forpositively preventing the inner panel in the inner track-way from beingremoved in an outward direction through the window opening, and lockinglatches carried by the panels and engaging in locking apertures in theupper portions of said inner and outer track-ways.

References Cited in the file of this patent UNITED STATES PATENTS642,279 Albright Jan. 30, 1900 761,733 Wahlstrom June 7, 1904 2,341,200Yoxsimer Feb. 8, 1944 2,634,151 Russell et a1. Apr. 7, 1953 2,739,674Casebolt Mar. 27, 1956 2,755,520 Pesonen July 24, 1956 2,779,401 BascomJan. 29, 1957

